arch/powerpc/boot/Makefile - kernel/msm-4.9 - Gitiles

 # Makefile for making ELF bootable images for booting on CHRP
 # using Open Firmware.
 #
 # Geert Uytterhoeven	September 1997
 #
 # Based on coffboot by Paul Mackerras
 # Simplified for ppc64 by Todd Inglett
 #
 # NOTE:	this code is built for 32 bit in ELF32 format even though
 #	it packages a 64 bit kernel.  We do this to simplify the
 #	bootloader and increase compatibility with OpenFirmware.
 #
 #	To this end we need to define BOOTCC, etc, as the tools
 #	needed to build the 32 bit image.  That's normally the same
 #	compiler for the rest of the kernel, with the -m32 flag added.
 #	To make it easier to setup a cross compiler,
 #	CROSS32_COMPILE is setup as a prefix just like CROSS_COMPILE
 #	in the toplevel makefile.

 all: $(obj)/zImage

 BOOTCFLAGS    := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
 		 -fno-strict-aliasing -Os -msoft-float -pipe \
 		 -fomit-frame-pointer -fno-builtin -fPIC -nostdinc \
 		 -isystem $(shell $(CROSS32CC) -print-file-name=include)
 BOOTAFLAGS	:= -D__ASSEMBLY__ $(BOOTCFLAGS) -traditional -nostdinc

 ifdef CONFIG_DEBUG_INFO
 BOOTCFLAGS	+= -g
 endif

 ifeq ($(call cc-option-yn, -fstack-protector),y)
 BOOTCFLAGS	+= -fno-stack-protector
 endif

 BOOTCFLAGS	+= -I$(obj) -I$(srctree)/$(obj) -I$(srctree)/$(src)/libfdt

 DTS_FLAGS	?= -p 1024

 $(obj)/4xx.o: BOOTCFLAGS += -mcpu=405
 $(obj)/ebony.o: BOOTCFLAGS += -mcpu=405
 $(obj)/cuboot-taishan.o: BOOTCFLAGS += -mcpu=405
 $(obj)/cuboot-katmai.o: BOOTCFLAGS += -mcpu=405
 $(obj)/treeboot-walnut.o: BOOTCFLAGS += -mcpu=405
 $(obj)/virtex405-head.o: BOOTAFLAGS += -mcpu=405


 zlib       := inffast.c inflate.c inftrees.c
 zlibheader := inffast.h inffixed.h inflate.h inftrees.h infutil.h
 zliblinuxheader := zlib.h zconf.h zutil.h

 $(addprefix $(obj)/,$(zlib) gunzip_util.o main.o): \
 	$(addprefix $(obj)/,$(zliblinuxheader)) $(addprefix $(obj)/,$(zlibheader))

 src-libfdt := fdt.c fdt_ro.c fdt_wip.c fdt_sw.c fdt_rw.c fdt_strerror.c
 src-wlib := string.S crt0.S crtsavres.S stdio.c main.c \
 		$(addprefix libfdt/,$(src-libfdt)) libfdt-wrapper.c \
 		ns16550.c serial.c simple_alloc.c div64.S util.S \
 		gunzip_util.c elf_util.c $(zlib) devtree.c oflib.c ofconsole.c \
 		4xx.c ebony.c mv64x60.c mpsc.c mv64x60_i2c.c cuboot.c bamboo.c \
 		cpm-serial.c stdlib.c mpc52xx-psc.c planetcore.c uartlite.c \
 		fsl-soc.c mpc8xx.c pq2.c
 src-plat := of.c cuboot-52xx.c cuboot-824x.c cuboot-83xx.c cuboot-85xx.c holly.c \
 		cuboot-ebony.c treeboot-ebony.c prpmc2800.c \
 		ps3-head.S ps3-hvcall.S ps3.c treeboot-bamboo.c cuboot-8xx.c \
 		cuboot-pq2.c cuboot-sequoia.c treeboot-walnut.c \
 		cuboot-bamboo.c cuboot-mpc7448hpc2.c cuboot-taishan.c \
 		fixed-head.S ep88xc.c ep405.c cuboot-c2k.c \
 		cuboot-katmai.c cuboot-rainier.c redboot-8xx.c ep8248e.c \
 		cuboot-warp.c cuboot-85xx-cpm2.c cuboot-yosemite.c simpleboot.c \
 		virtex405-head.S virtex.c redboot-83xx.c cuboot-sam440ep.c
 src-boot := $(src-wlib) $(src-plat) empty.c

 src-boot := $(addprefix $(obj)/, $(src-boot))
 obj-boot := $(addsuffix .o, $(basename $(src-boot)))
 obj-wlib := $(addsuffix .o, $(basename $(addprefix $(obj)/, $(src-wlib))))
 obj-plat := $(addsuffix .o, $(basename $(addprefix $(obj)/, $(src-plat))))

 quiet_cmd_copy_zlib = COPY    $@
       cmd_copy_zlib = sed "s@__used@@;s@<linux/\([^>]*\).*@\"\1\"@" $< > $@

 quiet_cmd_copy_zlibheader = COPY    $@
       cmd_copy_zlibheader = sed "s@<linux/\([^>]*\).*@\"\1\"@" $< > $@
 # stddef.h for NULL
 quiet_cmd_copy_zliblinuxheader = COPY    $@
       cmd_copy_zliblinuxheader = sed "s@<linux/string.h>@\"string.h\"@;s@<linux/kernel.h>@<stddef.h>@;s@<linux/\([^>]*\).*@\"\1\"@" $< > $@

 $(addprefix $(obj)/,$(zlib)): $(obj)/%: $(srctree)/lib/zlib_inflate/%
 	$(call cmd,copy_zlib)

 $(addprefix $(obj)/,$(zlibheader)): $(obj)/%: $(srctree)/lib/zlib_inflate/%
 	$(call cmd,copy_zlibheader)

 $(addprefix $(obj)/,$(zliblinuxheader)): $(obj)/%: $(srctree)/include/linux/%
 	$(call cmd,copy_zliblinuxheader)

 $(obj)/empty.c:
 	@touch $@

 $(obj)/zImage.lds $(obj)/zImage.coff.lds $(obj)/zImage.ps3.lds: $(obj)/%: $(srctree)/$(src)/%.S
 	@cp $< $@

 clean-files := $(zlib) $(zlibheader) $(zliblinuxheader) \
 		empty.c zImage.coff.lds zImage.ps3.lds zImage.lds

 quiet_cmd_bootcc = BOOTCC  $@
       cmd_bootcc = $(CROSS32CC) -Wp,-MD,$(depfile) $(BOOTCFLAGS) -c -o $@ $<

 quiet_cmd_bootas = BOOTAS  $@
       cmd_bootas = $(CROSS32CC) -Wp,-MD,$(depfile) $(BOOTAFLAGS) -c -o $@ $<

 quiet_cmd_bootar = BOOTAR  $@
       cmd_bootar = $(CROSS32AR) -cr $@.$$$$ $(filter-out FORCE,$^); mv $@.$$$$ $@

 $(patsubst %.c,%.o, $(filter %.c, $(src-boot))): %.o: %.c FORCE
 	$(Q)mkdir -p $(dir $@)
 	$(call if_changed_dep,bootcc)
 $(patsubst %.S,%.o, $(filter %.S, $(src-boot))): %.o: %.S FORCE
 	$(Q)mkdir -p $(dir $@)
 	$(call if_changed_dep,bootas)

 $(obj)/wrapper.a: $(obj-wlib) FORCE
 	$(call if_changed,bootar)

 hostprogs-y	:= addnote addRamDisk hack-coff mktree dtc

 targets		+= $(patsubst $(obj)/%,%,$(obj-boot) wrapper.a)
 extra-y		:= $(obj)/wrapper.a $(obj-plat) $(obj)/empty.o \
 		   $(obj)/zImage.lds $(obj)/zImage.coff.lds $(obj)/zImage.ps3.lds

 dtstree		:= $(srctree)/$(src)/dts

 wrapper		:=$(srctree)/$(src)/wrapper
 wrapperbits	:= $(extra-y) $(addprefix $(obj)/,addnote hack-coff mktree dtc) \
 			$(wrapper) FORCE

 #############
 # Bits for building dtc
 # DTC_GENPARSER      := 1    # Uncomment to rebuild flex/bison output

 dtc-objs := dtc.o flattree.o fstree.o data.o livetree.o treesource.o srcpos.o checks.o
 dtc-objs += dtc-lexer.lex.o dtc-parser.tab.o
 dtc-objs := $(addprefix dtc-src/, $(dtc-objs))

 # prerequisites on generated files needs to be explicit
 $(obj)/dtc-src/dtc-parser.tab.o: $(obj)/dtc-src/dtc-parser.tab.c $(obj)/dtc-src/dtc-parser.tab.h
 $(obj)/dtc-src/dtc-lexer.lex.o:  $(obj)/dtc-src/dtc-lexer.lex.c $(obj)/dtc-src/dtc-parser.tab.h

 HOSTCFLAGS += -I$(src)/dtc-src/ -I$(src)/libfdt/

 targets += dtc-src/dtc-parser.tab.c
 targets += dtc-src/dtc-lexer.lex.c

 clean-files += dtc-src/dtc-parser.tab.h

 ifdef DTC_GENPARSER
 BISON = bison
 FLEX = flex

 quiet_cmd_bison = BISON   $@
       cmd_bison = $(BISON) -o$@ -d $<; cp $@ $@_shipped
 quiet_cmd_flex = FLEX    $@
       cmd_flex = $(FLEX) -o$@ $<; cp $@ $@_shipped

 $(obj)/dtc-src/dtc-parser.tab.c: $(src)/dtc-src/dtc-parser.y FORCE
 	$(call if_changed,bison)

 $(obj)/dtc-src/dtc-parser.tab.h: $(obj)/dtc-src/dtc-parser.tab.c

 $(obj)/dtc-src/dtc-lexer.lex.c: $(src)/dtc-src/dtc-lexer.l FORCE
 	$(call if_changed,flex)
 endif

 #############
 # Bits for building various flavours of zImage

 ifneq ($(CROSS32_COMPILE),)
 CROSSWRAP := -C "$(CROSS32_COMPILE)"
 else
 ifneq ($(CROSS_COMPILE),)
 CROSSWRAP := -C "$(CROSS_COMPILE)"
 endif
 endif

 # args (to if_changed): 1 = (this rule), 2 = platform, 3 = dts 4=dtb 5=initrd
 quiet_cmd_wrap	= WRAP    $@
       cmd_wrap	=$(CONFIG_SHELL) $(wrapper) -c -o $@ -p $2 $(CROSSWRAP) \
 		$(if $3, -s $3)$(if $4, -d $4)$(if $5, -i $5) vmlinux

 image-$(CONFIG_PPC_PSERIES)		+= zImage.pseries
 image-$(CONFIG_PPC_MAPLE)		+= zImage.pseries
 image-$(CONFIG_PPC_IBM_CELL_BLADE)	+= zImage.pseries
 image-$(CONFIG_PPC_PS3)			+= dtbImage.ps3
 image-$(CONFIG_PPC_CELLEB)		+= zImage.pseries
 image-$(CONFIG_PPC_CHRP)		+= zImage.chrp
 image-$(CONFIG_PPC_EFIKA)		+= zImage.chrp
 image-$(CONFIG_PPC_PMAC)		+= zImage.pmac
 image-$(CONFIG_PPC_HOLLY)		+= zImage.holly
 image-$(CONFIG_PPC_PRPMC2800)		+= dtbImage.prpmc2800
 image-$(CONFIG_PPC_ISERIES)		+= zImage.iseries
 image-$(CONFIG_DEFAULT_UIMAGE)		+= uImage

 #
 # Targets which embed a device tree blob
 #
 # Theses are default targets to build images which embed device tree blobs.
 # They are only required on boards which do not have FDT support in firmware.
 # Boards with newish u-boot firmare can use the uImage target above
 #

 # Board ports in arch/powerpc/platform/40x/Kconfig
 image-$(CONFIG_EP405)			+= dtbImage.ep405
 image-$(CONFIG_WALNUT)			+= treeImage.walnut

 # Board ports in arch/powerpc/platform/44x/Kconfig
 image-$(CONFIG_EBONY)			+= treeImage.ebony cuImage.ebony
 image-$(CONFIG_BAMBOO)			+= treeImage.bamboo cuImage.bamboo
 image-$(CONFIG_SAM440EP)		+= cuImage.sam440ep
 image-$(CONFIG_SEQUOIA)			+= cuImage.sequoia
 image-$(CONFIG_RAINIER)			+= cuImage.rainier
 image-$(CONFIG_TAISHAN)			+= cuImage.taishan
 image-$(CONFIG_KATMAI)			+= cuImage.katmai
 image-$(CONFIG_WARP)			+= cuImage.warp
 image-$(CONFIG_YOSEMITE)		+= cuImage.yosemite

 # Board ports in arch/powerpc/platform/8xx/Kconfig
 image-$(CONFIG_MPC86XADS)		+= cuImage.mpc866ads
 image-$(CONFIG_MPC885ADS)		+= cuImage.mpc885ads
 image-$(CONFIG_PPC_EP88XC)		+= dtbImage.ep88xc
 image-$(CONFIG_PPC_ADDER875)		+= cuImage.adder875-uboot \
 					   dtbImage.adder875-redboot

 # Board ports in arch/powerpc/platform/52xx/Kconfig
 image-$(CONFIG_PPC_LITE5200)		+= cuImage.lite5200 cuImage.lite5200b

 # Board ports in arch/powerpc/platform/82xx/Kconfig
 image-$(CONFIG_MPC8272_ADS)		+= cuImage.mpc8272ads
 image-$(CONFIG_PQ2FADS)			+= cuImage.pq2fads
 image-$(CONFIG_EP8248E)			+= dtbImage.ep8248e

 # Board ports in arch/powerpc/platform/83xx/Kconfig
 image-$(CONFIG_MPC832x_MDS)		+= cuImage.mpc832x_mds
 image-$(CONFIG_MPC832x_RDB)		+= cuImage.mpc832x_rdb
 image-$(CONFIG_MPC834x_ITX)		+= cuImage.mpc8349emitx \
 					   cuImage.mpc8349emitxgp
 image-$(CONFIG_MPC834x_MDS)		+= cuImage.mpc834x_mds
 image-$(CONFIG_MPC836x_MDS)		+= cuImage.mpc836x_mds
 image-$(CONFIG_ASP834x)			+= dtbImage.asp834x-redboot

 # Board ports in arch/powerpc/platform/85xx/Kconfig
 image-$(CONFIG_MPC8540_ADS)		+= cuImage.mpc8540ads
 image-$(CONFIG_MPC8560_ADS)		+= cuImage.mpc8560ads
 image-$(CONFIG_MPC85xx_CDS)		+= cuImage.mpc8541cds \
 					   cuImage.mpc8548cds \
 					   cuImage.mpc8555cds
 image-$(CONFIG_MPC85xx_MDS)		+= cuImage.mpc8568mds
 image-$(CONFIG_MPC85xx_DS)		+= cuImage.mpc8544ds \
 					   cuImage.mpc8572ds
 image-$(CONFIG_TQM8540)			+= cuImage.tqm8540
 image-$(CONFIG_TQM8541)			+= cuImage.tqm8541
 image-$(CONFIG_TQM8548)			+= cuImage.tqm8548
 image-$(CONFIG_TQM8555)			+= cuImage.tqm8555
 image-$(CONFIG_TQM8560)			+= cuImage.tqm8560
 image-$(CONFIG_SBC8548)			+= cuImage.sbc8548
 image-$(CONFIG_SBC8560)			+= cuImage.sbc8560
 image-$(CONFIG_KSI8560)			+= cuImage.ksi8560

 # Board ports in arch/powerpc/platform/embedded6xx/Kconfig
 image-$(CONFIG_STORCENTER)		+= cuImage.storcenter
 image-$(CONFIG_MPC7448HPC2)		+= cuImage.mpc7448hpc2
 image-$(CONFIG_PPC_C2K)			+= cuImage.c2k

 # For 32-bit powermacs, build the COFF and miboot images
 # as well as the ELF images.
 ifeq ($(CONFIG_PPC32),y)
 image-$(CONFIG_PPC_PMAC)	+= zImage.coff zImage.miboot
 endif

 # Allow extra targets to be added to the defconfig
 image-y	+= $(subst ",,$(CONFIG_EXTRA_TARGETS))

 initrd-  := $(patsubst zImage%, zImage.initrd%, $(image-n) $(image-))
 initrd-y := $(patsubst zImage%, zImage.initrd%, \
 		$(patsubst dtbImage%, dtbImage.initrd%, \
 		$(patsubst simpleImage%, simpleImage.initrd%, \
 		$(patsubst treeImage%, treeImage.initrd%, $(image-y)))))
 initrd-y := $(filter-out $(image-y), $(initrd-y))
 targets	+= $(image-y) $(initrd-y)

 $(addprefix $(obj)/, $(initrd-y)): $(obj)/ramdisk.image.gz

 # Don't put the ramdisk on the pattern rule; when its missing make will try
 # the pattern rule with less dependencies that also matches (even with the
 # hard dependency listed).
 $(obj)/zImage.initrd.%: vmlinux $(wrapperbits)
 	$(call if_changed,wrap,$*,,,$(obj)/ramdisk.image.gz)

 $(obj)/zImage.%: vmlinux $(wrapperbits)
 	$(call if_changed,wrap,$*)

 # dtbImage% - a dtbImage is a zImage with an embedded device tree blob
 $(obj)/dtbImage.initrd.%: vmlinux $(wrapperbits) $(obj)/%.dtb
 	$(call if_changed,wrap,$*,,$(obj)/$*.dtb,$(obj)/ramdisk.image.gz)

 $(obj)/dtbImage.%: vmlinux $(wrapperbits) $(obj)/%.dtb
 	$(call if_changed,wrap,$*,,$(obj)/$*.dtb)

 # This cannot be in the root of $(src) as the zImage rule always adds a $(obj)
 # prefix
 $(obj)/vmlinux.strip: vmlinux
 	$(STRIP) -s -R .comment $< -o $@

 $(obj)/zImage.iseries: vmlinux
 	$(STRIP) -s -R .comment $< -o $@

 $(obj)/uImage: vmlinux $(wrapperbits)
 	$(call if_changed,wrap,uboot)

 $(obj)/cuImage.%: vmlinux $(obj)/%.dtb $(wrapperbits)
 	$(call if_changed,wrap,cuboot-$*,,$(obj)/$*.dtb)

 $(obj)/simpleImage.initrd.%: vmlinux $(obj)/%.dtb $(wrapperbits)
 	$(call if_changed,wrap,simpleboot-$*,,$(obj)/$*.dtb,$(obj)/ramdisk.image.gz)

 $(obj)/simpleImage.%: vmlinux $(obj)/%.dtb $(wrapperbits)
 	$(call if_changed,wrap,simpleboot-$*,,$(obj)/$*.dtb)

 $(obj)/treeImage.initrd.%: vmlinux $(obj)/%.dtb $(wrapperbits)
 	$(call if_changed,wrap,treeboot-$*,,$(obj)/$*.dtb,$(obj)/ramdisk.image.gz)

 $(obj)/treeImage.%: vmlinux $(obj)/%.dtb $(wrapperbits)
 	$(call if_changed,wrap,treeboot-$*,,$(obj)/$*.dtb)

 # Rule to build device tree blobs
 $(obj)/%.dtb: $(dtstree)/%.dts $(obj)/dtc
 	$(obj)/dtc -O dtb -o $(obj)/$*.dtb -b 0 $(DTS_FLAGS) $(dtstree)/$*.dts

 # If there isn't a platform selected then just strip the vmlinux.
 ifeq (,$(image-y))
 image-y := vmlinux.strip
 endif

 $(obj)/zImage:		$(addprefix $(obj)/, $(image-y))
 	@rm -f $@; ln $< $@
 $(obj)/zImage.initrd:	$(addprefix $(obj)/, $(initrd-y))
 	@rm -f $@; ln $< $@

 install: $(CONFIGURE) $(addprefix $(obj)/, $(image-y))
 	sh -x $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" vmlinux System.map "$(INSTALL_PATH)" $<

 # anything not in $(targets)
 clean-files += $(image-) $(initrd-) cuImage.* dtbImage.* treeImage.* \
 	zImage zImage.initrd zImage.chrp zImage.coff zImage.holly \
 	zImage.iseries zImage.miboot zImage.pmac zImage.pseries \
 	otheros.bld *.dtb

 # clean up files cached by wrapper
 clean-kernel := vmlinux.strip vmlinux.bin
 clean-kernel += $(addsuffix .gz,$(clean-kernel))
 # If not absolute clean-files are relative to $(obj).
 clean-files += $(addprefix $(objtree)/, $(clean-kernel))

 WRAPPER_OBJDIR := /usr/lib/kernel-wrapper
 WRAPPER_DTSDIR := /usr/lib/kernel-wrapper/dts
 WRAPPER_BINDIR := /usr/sbin
 INSTALL := install

 extra-installed		:= $(patsubst $(obj)/%, $(DESTDIR)$(WRAPPER_OBJDIR)/%, $(extra-y))
 hostprogs-installed	:= $(patsubst %, $(DESTDIR)$(WRAPPER_BINDIR)/%, $(hostprogs-y))
 wrapper-installed	:= $(DESTDIR)$(WRAPPER_BINDIR)/wrapper
 dts-installed		:= $(patsubst $(obj)/dts/%, $(DESTDIR)$(WRAPPER_DTSDIR)/%, $(wildcard $(obj)/dts/*.dts))

 all-installed		:= $(extra-installed) $(hostprogs-installed) $(wrapper-installed) $(dts-installed)

 quiet_cmd_mkdir           = MKDIR   $(patsubst $(INSTALL_HDR_PATH)/%,%,$@)
       cmd_mkdir           = mkdir -p $@

 quiet_cmd_install	  = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_OBJDIR)/%,%,$@)
       cmd_install	  = $(INSTALL)  -m0644 $(patsubst $(DESTDIR)$(WRAPPER_OBJDIR)/%,$(obj)/%,$@) $@

 quiet_cmd_install_dts	  = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_DTSDIR)/%,dts/%,$@)
       cmd_install_dts	  = $(INSTALL)  -m0644 $(patsubst $(DESTDIR)$(WRAPPER_DTSDIR)/%,$(srctree)/$(obj)/dts/%,$@) $@

 quiet_cmd_install_exe	  = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,%,$@)
       cmd_install_exe	  = $(INSTALL)  -m0755 $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,$(obj)/%,$@) $@

 quiet_cmd_install_wrapper = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,%,$@)
       cmd_install_wrapper = $(INSTALL)  -m0755 $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,$(srctree)/$(obj)/%,$@) $@ ;\
 				sed -i $@ -e 's%^object=.*%object=$(WRAPPER_OBJDIR)%' \
 					  -e 's%^objbin=.*%objbin=$(WRAPPER_BINDIR)%' \


 $(DESTDIR)$(WRAPPER_OBJDIR) $(DESTDIR)$(WRAPPER_DTSDIR) $(DESTDIR)$(WRAPPER_BINDIR):
 	$(call cmd,mkdir)

 $(extra-installed)	: $(DESTDIR)$(WRAPPER_OBJDIR)/% : $(obj)/% | $(DESTDIR)$(WRAPPER_OBJDIR)
 	$(call cmd,install)

 $(hostprogs-installed)  : $(DESTDIR)$(WRAPPER_BINDIR)/% : $(obj)/% | $(DESTDIR)$(WRAPPER_BINDIR)
 	$(call cmd,install_exe)

 $(dts-installed)	: $(DESTDIR)$(WRAPPER_DTSDIR)/% : $(srctree)/$(obj)/dts/% | $(DESTDIR)$(WRAPPER_DTSDIR)
 	$(call cmd,install_dts)

 $(wrapper-installed): $(DESTDIR)$(WRAPPER_BINDIR) $(srctree)/$(obj)/wrapper | $(DESTDIR)$(WRAPPER_BINDIR)
 	$(call cmd,install_wrapper)

 $(obj)/bootwrapper_install: $(all-installed)
	# Makefile for making ELF bootable images for booting on CHRP
	# using Open Firmware.
	#
	# Geert Uytterhoeven September 1997
	#
	# Based on coffboot by Paul Mackerras
	# Simplified for ppc64 by Todd Inglett
	#
	# NOTE: this code is built for 32 bit in ELF32 format even though
	# it packages a 64 bit kernel. We do this to simplify the
	# bootloader and increase compatibility with OpenFirmware.
	#
	# To this end we need to define BOOTCC, etc, as the tools
	# needed to build the 32 bit image. That's normally the same
	# compiler for the rest of the kernel, with the -m32 flag added.
	# To make it easier to setup a cross compiler,
	# CROSS32_COMPILE is setup as a prefix just like CROSS_COMPILE
	# in the toplevel makefile.

	all: $(obj)/zImage

	BOOTCFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
	-fno-strict-aliasing -Os -msoft-float -pipe \
	-fomit-frame-pointer -fno-builtin -fPIC -nostdinc \
	-isystem $(shell $(CROSS32CC) -print-file-name=include)
	BOOTAFLAGS := -D__ASSEMBLY__ $(BOOTCFLAGS) -traditional -nostdinc

	ifdef CONFIG_DEBUG_INFO
	BOOTCFLAGS += -g
	endif

	ifeq ($(call cc-option-yn, -fstack-protector),y)
	BOOTCFLAGS += -fno-stack-protector
	endif

	BOOTCFLAGS += -I$(obj) -I$(srctree)/$(obj) -I$(srctree)/$(src)/libfdt

	DTS_FLAGS ?= -p 1024

	$(obj)/4xx.o: BOOTCFLAGS += -mcpu=405
	$(obj)/ebony.o: BOOTCFLAGS += -mcpu=405
	$(obj)/cuboot-taishan.o: BOOTCFLAGS += -mcpu=405
	$(obj)/cuboot-katmai.o: BOOTCFLAGS += -mcpu=405
	$(obj)/treeboot-walnut.o: BOOTCFLAGS += -mcpu=405
	$(obj)/virtex405-head.o: BOOTAFLAGS += -mcpu=405


	zlib := inffast.c inflate.c inftrees.c
	zlibheader := inffast.h inffixed.h inflate.h inftrees.h infutil.h
	zliblinuxheader := zlib.h zconf.h zutil.h

	$(addprefix $(obj)/,$(zlib) gunzip_util.o main.o): \
	$(addprefix $(obj)/,$(zliblinuxheader)) $(addprefix $(obj)/,$(zlibheader))

	src-libfdt := fdt.c fdt_ro.c fdt_wip.c fdt_sw.c fdt_rw.c fdt_strerror.c
	src-wlib := string.S crt0.S crtsavres.S stdio.c main.c \
	$(addprefix libfdt/,$(src-libfdt)) libfdt-wrapper.c \
	ns16550.c serial.c simple_alloc.c div64.S util.S \
	gunzip_util.c elf_util.c $(zlib) devtree.c oflib.c ofconsole.c \
	4xx.c ebony.c mv64x60.c mpsc.c mv64x60_i2c.c cuboot.c bamboo.c \
	cpm-serial.c stdlib.c mpc52xx-psc.c planetcore.c uartlite.c \
	fsl-soc.c mpc8xx.c pq2.c
	src-plat := of.c cuboot-52xx.c cuboot-824x.c cuboot-83xx.c cuboot-85xx.c holly.c \
	cuboot-ebony.c treeboot-ebony.c prpmc2800.c \
	ps3-head.S ps3-hvcall.S ps3.c treeboot-bamboo.c cuboot-8xx.c \
	cuboot-pq2.c cuboot-sequoia.c treeboot-walnut.c \
	cuboot-bamboo.c cuboot-mpc7448hpc2.c cuboot-taishan.c \
	fixed-head.S ep88xc.c ep405.c cuboot-c2k.c \
	cuboot-katmai.c cuboot-rainier.c redboot-8xx.c ep8248e.c \
	cuboot-warp.c cuboot-85xx-cpm2.c cuboot-yosemite.c simpleboot.c \
	virtex405-head.S virtex.c redboot-83xx.c cuboot-sam440ep.c
	src-boot := $(src-wlib) $(src-plat) empty.c

	src-boot := $(addprefix $(obj)/, $(src-boot))
	obj-boot := $(addsuffix .o, $(basename $(src-boot)))
	obj-wlib := $(addsuffix .o, $(basename $(addprefix $(obj)/, $(src-wlib))))
	obj-plat := $(addsuffix .o, $(basename $(addprefix $(obj)/, $(src-plat))))

	quiet_cmd_copy_zlib = COPY $@
	cmd_copy_zlib = sed "s@__used@@;s@<linux/\([^>]\).@\"\1\"@" $< > $@

	quiet_cmd_copy_zlibheader = COPY $@
	cmd_copy_zlibheader = sed "s@<linux/\([^>]\).@\"\1\"@" $< > $@
	# stddef.h for NULL
	quiet_cmd_copy_zliblinuxheader = COPY $@
	cmd_copy_zliblinuxheader = sed "s@<linux/string.h>@\"string.h\"@;s@<linux/kernel.h>@<stddef.h>@;s@<linux/\([^>]\).@\"\1\"@" $< > $@

	$(addprefix $(obj)/,$(zlib)): $(obj)/%: $(srctree)/lib/zlib_inflate/%
	$(call cmd,copy_zlib)

	$(addprefix $(obj)/,$(zlibheader)): $(obj)/%: $(srctree)/lib/zlib_inflate/%
	$(call cmd,copy_zlibheader)

	$(addprefix $(obj)/,$(zliblinuxheader)): $(obj)/%: $(srctree)/include/linux/%
	$(call cmd,copy_zliblinuxheader)

	$(obj)/empty.c:
	@touch $@

	$(obj)/zImage.lds $(obj)/zImage.coff.lds $(obj)/zImage.ps3.lds: $(obj)/%: $(srctree)/$(src)/%.S
	@cp $< $@

	clean-files := $(zlib) $(zlibheader) $(zliblinuxheader) \
	empty.c zImage.coff.lds zImage.ps3.lds zImage.lds

	quiet_cmd_bootcc = BOOTCC $@
	cmd_bootcc = $(CROSS32CC) -Wp,-MD,$(depfile) $(BOOTCFLAGS) -c -o $@ $<

	quiet_cmd_bootas = BOOTAS $@
	cmd_bootas = $(CROSS32CC) -Wp,-MD,$(depfile) $(BOOTAFLAGS) -c -o $@ $<

	quiet_cmd_bootar = BOOTAR $@
	cmd_bootar = $(CROSS32AR) -cr $@.$$$$ $(filter-out FORCE,$^); mv $@.$$$$ $@

	$(patsubst %.c,%.o, $(filter %.c, $(src-boot))): %.o: %.c FORCE
	$(Q)mkdir -p $(dir $@)
	$(call if_changed_dep,bootcc)
	$(patsubst %.S,%.o, $(filter %.S, $(src-boot))): %.o: %.S FORCE
	$(Q)mkdir -p $(dir $@)
	$(call if_changed_dep,bootas)

	$(obj)/wrapper.a: $(obj-wlib) FORCE
	$(call if_changed,bootar)

	hostprogs-y := addnote addRamDisk hack-coff mktree dtc

	targets += $(patsubst $(obj)/%,%,$(obj-boot) wrapper.a)
	extra-y := $(obj)/wrapper.a $(obj-plat) $(obj)/empty.o \
	$(obj)/zImage.lds $(obj)/zImage.coff.lds $(obj)/zImage.ps3.lds

	dtstree := $(srctree)/$(src)/dts

	wrapper :=$(srctree)/$(src)/wrapper
	wrapperbits := $(extra-y) $(addprefix $(obj)/,addnote hack-coff mktree dtc) \
	$(wrapper) FORCE

	#############
	# Bits for building dtc
	# DTC_GENPARSER := 1 # Uncomment to rebuild flex/bison output

	dtc-objs := dtc.o flattree.o fstree.o data.o livetree.o treesource.o srcpos.o checks.o
	dtc-objs += dtc-lexer.lex.o dtc-parser.tab.o
	dtc-objs := $(addprefix dtc-src/, $(dtc-objs))

	# prerequisites on generated files needs to be explicit
	$(obj)/dtc-src/dtc-parser.tab.o: $(obj)/dtc-src/dtc-parser.tab.c $(obj)/dtc-src/dtc-parser.tab.h
	$(obj)/dtc-src/dtc-lexer.lex.o: $(obj)/dtc-src/dtc-lexer.lex.c $(obj)/dtc-src/dtc-parser.tab.h

	HOSTCFLAGS += -I$(src)/dtc-src/ -I$(src)/libfdt/

	targets += dtc-src/dtc-parser.tab.c
	targets += dtc-src/dtc-lexer.lex.c

	clean-files += dtc-src/dtc-parser.tab.h

	ifdef DTC_GENPARSER
	BISON = bison
	FLEX = flex

	quiet_cmd_bison = BISON $@
	cmd_bison = $(BISON) -o$@ -d $<; cp $@ $@_shipped
	quiet_cmd_flex = FLEX $@
	cmd_flex = $(FLEX) -o$@ $<; cp $@ $@_shipped

	$(obj)/dtc-src/dtc-parser.tab.c: $(src)/dtc-src/dtc-parser.y FORCE
	$(call if_changed,bison)

	$(obj)/dtc-src/dtc-parser.tab.h: $(obj)/dtc-src/dtc-parser.tab.c

	$(obj)/dtc-src/dtc-lexer.lex.c: $(src)/dtc-src/dtc-lexer.l FORCE
	$(call if_changed,flex)
	endif

	#############
	# Bits for building various flavours of zImage

	ifneq ($(CROSS32_COMPILE),)
	CROSSWRAP := -C "$(CROSS32_COMPILE)"
	else
	ifneq ($(CROSS_COMPILE),)
	CROSSWRAP := -C "$(CROSS_COMPILE)"
	endif
	endif

	# args (to if_changed): 1 = (this rule), 2 = platform, 3 = dts 4=dtb 5=initrd
	quiet_cmd_wrap = WRAP $@
	cmd_wrap =$(CONFIG_SHELL) $(wrapper) -c -o $@ -p $2 $(CROSSWRAP) \
	$(if $3, -s $3)$(if $4, -d $4)$(if $5, -i $5) vmlinux

	image-$(CONFIG_PPC_PSERIES) += zImage.pseries
	image-$(CONFIG_PPC_MAPLE) += zImage.pseries
	image-$(CONFIG_PPC_IBM_CELL_BLADE) += zImage.pseries
	image-$(CONFIG_PPC_PS3) += dtbImage.ps3
	image-$(CONFIG_PPC_CELLEB) += zImage.pseries
	image-$(CONFIG_PPC_CHRP) += zImage.chrp
	image-$(CONFIG_PPC_EFIKA) += zImage.chrp
	image-$(CONFIG_PPC_PMAC) += zImage.pmac
	image-$(CONFIG_PPC_HOLLY) += zImage.holly
	image-$(CONFIG_PPC_PRPMC2800) += dtbImage.prpmc2800
	image-$(CONFIG_PPC_ISERIES) += zImage.iseries
	image-$(CONFIG_DEFAULT_UIMAGE) += uImage

	#
	# Targets which embed a device tree blob
	#
	# Theses are default targets to build images which embed device tree blobs.
	# They are only required on boards which do not have FDT support in firmware.
	# Boards with newish u-boot firmare can use the uImage target above
	#

	# Board ports in arch/powerpc/platform/40x/Kconfig
	image-$(CONFIG_EP405) += dtbImage.ep405
	image-$(CONFIG_WALNUT) += treeImage.walnut

	# Board ports in arch/powerpc/platform/44x/Kconfig
	image-$(CONFIG_EBONY) += treeImage.ebony cuImage.ebony
	image-$(CONFIG_BAMBOO) += treeImage.bamboo cuImage.bamboo
	image-$(CONFIG_SAM440EP) += cuImage.sam440ep
	image-$(CONFIG_SEQUOIA) += cuImage.sequoia
	image-$(CONFIG_RAINIER) += cuImage.rainier
	image-$(CONFIG_TAISHAN) += cuImage.taishan
	image-$(CONFIG_KATMAI) += cuImage.katmai
	image-$(CONFIG_WARP) += cuImage.warp
	image-$(CONFIG_YOSEMITE) += cuImage.yosemite

	# Board ports in arch/powerpc/platform/8xx/Kconfig
	image-$(CONFIG_MPC86XADS) += cuImage.mpc866ads
	image-$(CONFIG_MPC885ADS) += cuImage.mpc885ads
	image-$(CONFIG_PPC_EP88XC) += dtbImage.ep88xc
	image-$(CONFIG_PPC_ADDER875) += cuImage.adder875-uboot \
	dtbImage.adder875-redboot

	# Board ports in arch/powerpc/platform/52xx/Kconfig
	image-$(CONFIG_PPC_LITE5200) += cuImage.lite5200 cuImage.lite5200b

	# Board ports in arch/powerpc/platform/82xx/Kconfig
	image-$(CONFIG_MPC8272_ADS) += cuImage.mpc8272ads
	image-$(CONFIG_PQ2FADS) += cuImage.pq2fads
	image-$(CONFIG_EP8248E) += dtbImage.ep8248e

	# Board ports in arch/powerpc/platform/83xx/Kconfig
	image-$(CONFIG_MPC832x_MDS) += cuImage.mpc832x_mds
	image-$(CONFIG_MPC832x_RDB) += cuImage.mpc832x_rdb
	image-$(CONFIG_MPC834x_ITX) += cuImage.mpc8349emitx \
	cuImage.mpc8349emitxgp
	image-$(CONFIG_MPC834x_MDS) += cuImage.mpc834x_mds
	image-$(CONFIG_MPC836x_MDS) += cuImage.mpc836x_mds
	image-$(CONFIG_ASP834x) += dtbImage.asp834x-redboot

	# Board ports in arch/powerpc/platform/85xx/Kconfig
	image-$(CONFIG_MPC8540_ADS) += cuImage.mpc8540ads
	image-$(CONFIG_MPC8560_ADS) += cuImage.mpc8560ads
	image-$(CONFIG_MPC85xx_CDS) += cuImage.mpc8541cds \
	cuImage.mpc8548cds \
	cuImage.mpc8555cds
	image-$(CONFIG_MPC85xx_MDS) += cuImage.mpc8568mds
	image-$(CONFIG_MPC85xx_DS) += cuImage.mpc8544ds \
	cuImage.mpc8572ds
	image-$(CONFIG_TQM8540) += cuImage.tqm8540
	image-$(CONFIG_TQM8541) += cuImage.tqm8541
	image-$(CONFIG_TQM8548) += cuImage.tqm8548
	image-$(CONFIG_TQM8555) += cuImage.tqm8555
	image-$(CONFIG_TQM8560) += cuImage.tqm8560
	image-$(CONFIG_SBC8548) += cuImage.sbc8548
	image-$(CONFIG_SBC8560) += cuImage.sbc8560
	image-$(CONFIG_KSI8560) += cuImage.ksi8560

	# Board ports in arch/powerpc/platform/embedded6xx/Kconfig
	image-$(CONFIG_STORCENTER) += cuImage.storcenter
	image-$(CONFIG_MPC7448HPC2) += cuImage.mpc7448hpc2
	image-$(CONFIG_PPC_C2K) += cuImage.c2k

	# For 32-bit powermacs, build the COFF and miboot images
	# as well as the ELF images.
	ifeq ($(CONFIG_PPC32),y)
	image-$(CONFIG_PPC_PMAC) += zImage.coff zImage.miboot
	endif

	# Allow extra targets to be added to the defconfig
	image-y += $(subst ",,$(CONFIG_EXTRA_TARGETS))

	initrd- := $(patsubst zImage%, zImage.initrd%, $(image-n) $(image-))
	initrd-y := $(patsubst zImage%, zImage.initrd%, \
	$(patsubst dtbImage%, dtbImage.initrd%, \
	$(patsubst simpleImage%, simpleImage.initrd%, \
	$(patsubst treeImage%, treeImage.initrd%, $(image-y)))))
	initrd-y := $(filter-out $(image-y), $(initrd-y))
	targets += $(image-y) $(initrd-y)

	$(addprefix $(obj)/, $(initrd-y)): $(obj)/ramdisk.image.gz

	# Don't put the ramdisk on the pattern rule; when its missing make will try
	# the pattern rule with less dependencies that also matches (even with the
	# hard dependency listed).
	$(obj)/zImage.initrd.%: vmlinux $(wrapperbits)
	$(call if_changed,wrap,$*,,,$(obj)/ramdisk.image.gz)

	$(obj)/zImage.%: vmlinux $(wrapperbits)
	$(call if_changed,wrap,$*)

	# dtbImage% - a dtbImage is a zImage with an embedded device tree blob
	$(obj)/dtbImage.initrd.%: vmlinux $(wrapperbits) $(obj)/%.dtb
	$(call if_changed,wrap,$,,$(obj)/$.dtb,$(obj)/ramdisk.image.gz)

	$(obj)/dtbImage.%: vmlinux $(wrapperbits) $(obj)/%.dtb
	$(call if_changed,wrap,$,,$(obj)/$.dtb)

	# This cannot be in the root of $(src) as the zImage rule always adds a $(obj)
	# prefix
	$(obj)/vmlinux.strip: vmlinux
	$(STRIP) -s -R .comment $< -o $@

	$(obj)/zImage.iseries: vmlinux
	$(STRIP) -s -R .comment $< -o $@

	$(obj)/uImage: vmlinux $(wrapperbits)
	$(call if_changed,wrap,uboot)

	$(obj)/cuImage.%: vmlinux $(obj)/%.dtb $(wrapperbits)
	$(call if_changed,wrap,cuboot-$,,$(obj)/$.dtb)

	$(obj)/simpleImage.initrd.%: vmlinux $(obj)/%.dtb $(wrapperbits)
	$(call if_changed,wrap,simpleboot-$,,$(obj)/$.dtb,$(obj)/ramdisk.image.gz)

	$(obj)/simpleImage.%: vmlinux $(obj)/%.dtb $(wrapperbits)
	$(call if_changed,wrap,simpleboot-$,,$(obj)/$.dtb)

	$(obj)/treeImage.initrd.%: vmlinux $(obj)/%.dtb $(wrapperbits)
	$(call if_changed,wrap,treeboot-$,,$(obj)/$.dtb,$(obj)/ramdisk.image.gz)

	$(obj)/treeImage.%: vmlinux $(obj)/%.dtb $(wrapperbits)
	$(call if_changed,wrap,treeboot-$,,$(obj)/$.dtb)

	# Rule to build device tree blobs
	$(obj)/%.dtb: $(dtstree)/%.dts $(obj)/dtc
	$(obj)/dtc -O dtb -o $(obj)/$.dtb -b 0 $(DTS_FLAGS) $(dtstree)/$.dts

	# If there isn't a platform selected then just strip the vmlinux.
	ifeq (,$(image-y))
	image-y := vmlinux.strip
	endif

	$(obj)/zImage: $(addprefix $(obj)/, $(image-y))
	@rm -f $@; ln $< $@
	$(obj)/zImage.initrd: $(addprefix $(obj)/, $(initrd-y))
	@rm -f $@; ln $< $@

	install: $(CONFIGURE) $(addprefix $(obj)/, $(image-y))
	sh -x $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" vmlinux System.map "$(INSTALL_PATH)" $<

	# anything not in $(targets)
	clean-files += $(image-) $(initrd-) cuImage.* dtbImage.* treeImage.* \
	zImage zImage.initrd zImage.chrp zImage.coff zImage.holly \
	zImage.iseries zImage.miboot zImage.pmac zImage.pseries \
	otheros.bld *.dtb

	# clean up files cached by wrapper
	clean-kernel := vmlinux.strip vmlinux.bin
	clean-kernel += $(addsuffix .gz,$(clean-kernel))
	# If not absolute clean-files are relative to $(obj).
	clean-files += $(addprefix $(objtree)/, $(clean-kernel))

	WRAPPER_OBJDIR := /usr/lib/kernel-wrapper
	WRAPPER_DTSDIR := /usr/lib/kernel-wrapper/dts
	WRAPPER_BINDIR := /usr/sbin
	INSTALL := install

	extra-installed := $(patsubst $(obj)/%, $(DESTDIR)$(WRAPPER_OBJDIR)/%, $(extra-y))
	hostprogs-installed := $(patsubst %, $(DESTDIR)$(WRAPPER_BINDIR)/%, $(hostprogs-y))
	wrapper-installed := $(DESTDIR)$(WRAPPER_BINDIR)/wrapper
	dts-installed := $(patsubst $(obj)/dts/%, $(DESTDIR)$(WRAPPER_DTSDIR)/%, $(wildcard $(obj)/dts/*.dts))

	all-installed := $(extra-installed) $(hostprogs-installed) $(wrapper-installed) $(dts-installed)

	quiet_cmd_mkdir = MKDIR $(patsubst $(INSTALL_HDR_PATH)/%,%,$@)
	cmd_mkdir = mkdir -p $@

	quiet_cmd_install = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_OBJDIR)/%,%,$@)
	cmd_install = $(INSTALL) -m0644 $(patsubst $(DESTDIR)$(WRAPPER_OBJDIR)/%,$(obj)/%,$@) $@

	quiet_cmd_install_dts = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_DTSDIR)/%,dts/%,$@)
	cmd_install_dts = $(INSTALL) -m0644 $(patsubst $(DESTDIR)$(WRAPPER_DTSDIR)/%,$(srctree)/$(obj)/dts/%,$@) $@

	quiet_cmd_install_exe = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,%,$@)
	cmd_install_exe = $(INSTALL) -m0755 $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,$(obj)/%,$@) $@

	quiet_cmd_install_wrapper = INSTALL $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,%,$@)
	cmd_install_wrapper = $(INSTALL) -m0755 $(patsubst $(DESTDIR)$(WRAPPER_BINDIR)/%,$(srctree)/$(obj)/%,$@) $@ ;\
	sed -i $@ -e 's%^object=.*%object=$(WRAPPER_OBJDIR)%' \
	-e 's%^objbin=.*%objbin=$(WRAPPER_BINDIR)%' \


	$(DESTDIR)$(WRAPPER_OBJDIR) $(DESTDIR)$(WRAPPER_DTSDIR) $(DESTDIR)$(WRAPPER_BINDIR):
	$(call cmd,mkdir)

	$(extra-installed) : $(DESTDIR)$(WRAPPER_OBJDIR)/% : $(obj)/% \| $(DESTDIR)$(WRAPPER_OBJDIR)
	$(call cmd,install)

	$(hostprogs-installed) : $(DESTDIR)$(WRAPPER_BINDIR)/% : $(obj)/% \| $(DESTDIR)$(WRAPPER_BINDIR)
	$(call cmd,install_exe)

	$(dts-installed) : $(DESTDIR)$(WRAPPER_DTSDIR)/% : $(srctree)/$(obj)/dts/% \| $(DESTDIR)$(WRAPPER_DTSDIR)
	$(call cmd,install_dts)

	$(wrapper-installed): $(DESTDIR)$(WRAPPER_BINDIR) $(srctree)/$(obj)/wrapper \| $(DESTDIR)$(WRAPPER_BINDIR)
	$(call cmd,install_wrapper)

	$(obj)/bootwrapper_install: $(all-installed)